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2550240540 = 2232537382919
BaseRepresentation
bin1001100000000001…
…1001010100011100
320120201201122100100
42120000121110130
520210330144130
61101020301100
7120124454421
oct23000312434
96521648310
102550240540
1110995a9511
125b20a1790
13318470193
141a29abd48
15edd51c60
hex9801951c

2550240540 has 72 divisors (see below), whose sum is σ = 7944824160. Its totient is φ = 661682304.

The previous prime is 2550240491. The next prime is 2550240559. The reversal of 2550240540 is 450420552.

2550240540 is a `hidden beast` number, since 255 + 0 + 2 + 405 + 4 + 0 = 666.

It is a super-3 number, since 3×25502405403 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184800 + ... + 198119.

It is an arithmetic number, because the mean of its divisors is an integer number (110344780).

Almost surely, 22550240540 is an apocalyptic number.

2550240540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2550240540 is an abundant number, since it is smaller than the sum of its proper divisors (5394583620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2550240540 is a wasteful number, since it uses less digits than its factorization.

2550240540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382971 (or 382966 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 2550240540 is about 50499.9063365468. The cubic root of 2550240540 is about 1366.2401642229.

The spelling of 2550240540 in words is "two billion, five hundred fifty million, two hundred forty thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 37 45 60 74 90 111 148 180 185 222 333 370 444 555 666 740 1110 1332 1665 2220 3330 6660 382919 765838 1148757 1531676 1914595 2297514 3446271 3829190 4595028 5743785 6892542 7658380 11487570 13785084 14168003 17231355 22975140 28336006 34462710 42504009 56672012 68925420 70840015 85008018 127512027 141680030 170016036 212520045 255024054 283360060 425040090 510048108 637560135 850080180 1275120270 2550240540